JP2014516102A - 表面を調整するナノ潤滑剤 - Google Patents
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Abstract
Description
本出願は、2011年5月27日出願の米国特許仮出願第61/490,986号明細書の利益を主張し、ここでその全体が参照として本明細書に組み込まれる。
λ=h/σ
ここで、hは膜厚であり、σは合成表面粗さであり、下記のように定義される:
σ=(σ1 2+σ2 2)0.5
σ1およびσ2は、接触している表面の二乗平均(RMS)粗さである。図1に示されているデータは、非特許文献1のデータをプロットしている。ラムダが小さい場合、表面は、高い摩擦係数があるように互いに接触している。
実施例1を調製して、表面を調整するナノ粒子を含有する油の使用に対してそのようなナノ粒子を有さない油の使用による摩耗を比較した。各試料は10W30エンジン油を含んだ。試料Aは、平均サイズが3〜5nmの1重量%のダイヤモンドナノ粒子からなるナノ潤滑剤(分散体)を有する10W30エンジン油を含んだ。対照は、ナノ潤滑剤を有さない10W30エンジン油で調製した。
実施例2を調製して、他の試料の接触応力および傷跡の直径を比較した。実施例2では、10W30エンジン油を有する対照を使用し、これを、基剤として10W30エンジン油を有し、平均粒径が3〜5nmの0.5重量%のダイヤモンドナノ粒子を有する試料Bと比較した。
Claims (20)
- 算術平均粗さを有する表面を研磨するナノ潤滑剤組成物であって、
流動性潤滑剤と、
前記潤滑剤に分散され、前記表面を研磨するように構成されているナノ粒子であって、少なくとも約7モースの硬度および前記算術平均粗さの半分未満の直径または前記算術平均粗さの半分未満の長さを有するナノ粒子と、
を含むことを特徴とする組成物。 - 前記ナノ粒子は、ダイヤモンド、酸化アルミニウム、酸化ケイ素、炭化ホウ素、炭化ケイ素、および酸化ジルコニウムからなる群より選択されることを特徴とする請求項1に記載のナノ潤滑剤組成物。
- 二硫化モリブデンナノ粒子を更に含んで、前記表面に剪断をもたらすことを特徴とする請求項1に記載のナノ潤滑剤組成物。
- 前記ナノ粒子は、約35nm未満の平均直径を有することを特徴とする請求項1に記載のナノ潤滑剤組成物。
- 前記ナノ粒子は、約35nm未満の平均長さを有することを特徴とする請求項1に記載のナノ潤滑剤組成物。
- 前記流動性潤滑剤は、約10から約300センチストークの粘度を有することを特徴とする請求項1に記載のナノ潤滑剤組成物。
- グリースのベースオイルは、約200から約500センチストークの粘度を有することを特徴とする請求項1に記載のナノ潤滑剤組成物。
- 前記ナノ潤滑剤は、少なくとも7モースの硬度を有する前記ナノ粒子から本質的になる前記組成物中に約0.1から約5重量パーセントのナノ粒子を含むことを特徴とする請求項1に記載のナノ潤滑剤組成物。
- 算術平均粗さを有する表面を研磨するナノ潤滑剤組成物であって、
流動性潤滑剤と、
前記潤滑剤に分散され、前記表面を研磨するように構成されている多成分ナノ粒子であって、前記表面に剪断をもたらす第1のナノ粒子成分および前記表面に研磨を実施する第2のナノ粒子を含み、前記第2のナノ粒子成分が、前記第1のナノ粒子成分に少なくとも部分的に組み込まれ、前記第2のナノ粒子成分が、少なくとも約7モース(ヌープ硬度計における820kg/mm2)の硬度を有する多成分ナノ粒子と、
を含むことを特徴とする組成物。 - 前記第2のナノ粒子成分は、前記算術平均粗さの半分未満の直径または前記算術平均粗さの半分未満の長さを有することを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記第2のナノ粒子成分は、前記第1のナノ粒子成分を少なくとも部分的に被覆することを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記第2のナノ粒子成分は、前記第1のナノ粒子成分を完全に被覆することを特徴とする請求項11に記載のナノ潤滑剤組成物。
- 前記第2のナノ粒子成分は、前記第1のナノ粒子成分に少なくとも部分的に埋め込まれていることを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記第2のナノ粒子成分は、ダイヤモンド、酸化アルミニウム、酸化ケイ素、炭化ホウ素、炭化ケイ素、および酸化ジルコニウムからなる群より選択されることを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記第1のナノ粒子成分は、二硫化モリブデン、二硫化タングステン、窒化ホウ素、およびグラファイトからなる群より選択されることを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記第2のナノ粒子成分は、約35nm未満の直径を有することを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記第2のナノ粒子成分は、約35nm未満の長さを有することを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記流動性潤滑剤は、約10から約300センチストークの粘度を有することを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 前記流動性潤滑剤は、約200から約500センチストークの粘度を有することを特徴とする請求項9に記載のナノ潤滑剤組成物。
- 算術平均粗さを有する接触表面をその場でナノ研磨する方法であって、
流動性潤滑剤とナノ粒子とを含み、前記ナノ粒子が、前記潤滑剤に分散され、前記表面を研磨するように構成され、前記ナノ粒子が、少なくとも約7モース(ヌープ硬度計における820kg/mm2)の硬度および前記算術平均粗さの半分未満の直径または前記算術平均粗さの半分未満の長さを有するナノ潤滑剤を提供するステップと、
前記ナノ潤滑剤の使用により前記接触表面を研磨して、前記表面での前記ナノ潤滑剤の膜厚と合成粗さとの比を増大するステップと、
を含むことを特徴とする方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161490986P | 2011-05-27 | 2011-05-27 | |
US61/490,986 | 2011-05-27 | ||
PCT/US2012/039593 WO2012166604A2 (en) | 2011-05-27 | 2012-05-25 | Surface conditioning nanolubricant |
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JP2014516102A true JP2014516102A (ja) | 2014-07-07 |
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JP2014512141A Pending JP2014516102A (ja) | 2011-05-27 | 2012-05-25 | 表面を調整するナノ潤滑剤 |
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US (1) | US9644166B2 (ja) |
EP (1) | EP2714814B1 (ja) |
JP (1) | JP2014516102A (ja) |
CA (1) | CA2837217C (ja) |
WO (1) | WO2012166604A2 (ja) |
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JP2018514643A (ja) * | 2015-05-04 | 2018-06-07 | ピクセリジェント・テクノロジーズ,エルエルシー | 改良した潤滑剤を可能にするナノ添加剤 |
WO2020054337A1 (ja) * | 2018-09-11 | 2020-03-19 | 株式会社ダイセル | 潤滑剤組成物 |
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US9358613B2 (en) * | 2013-04-08 | 2016-06-07 | Baker Hughes Incorporated | Hydrophobic porous hard coating with lubricant, method for making and use of same |
US10913914B2 (en) * | 2015-03-31 | 2021-02-09 | Purdue Research Foundation | Lubricants comprising carbon particles and methods of making the same |
WO2017023713A1 (en) * | 2015-08-04 | 2017-02-09 | Merck Sharp & Dohme Corp. | Methods for making pharmaceutical solid dosage forms of spray-dried dispersions |
EP3359630A1 (en) * | 2015-10-06 | 2018-08-15 | Hindustan Petroleum Corporation Limited | Nano suspension lubricants |
JP6749433B2 (ja) * | 2018-09-11 | 2020-09-02 | 株式会社ダイセル | 初期なじみ用潤滑剤組成物 |
WO2020054523A1 (ja) * | 2018-09-11 | 2020-03-19 | 株式会社ダイセル | 初期なじみ用潤滑剤組成物、摺動部材、および摺動部材の製造方法 |
CN113337328B (zh) * | 2020-03-02 | 2022-11-25 | 镒威股份有限公司 | 润滑组成物 |
CN113004965A (zh) * | 2021-03-12 | 2021-06-22 | 浙江理工大学 | 一种用于钢-铜摩擦副的复合纳米润滑油及其制备方法 |
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WO2012166604A2 (en) | 2012-12-06 |
EP2714814B1 (en) | 2018-10-31 |
EP2714814A2 (en) | 2014-04-09 |
US9644166B2 (en) | 2017-05-09 |
WO2012166604A3 (en) | 2014-05-08 |
CA2837217C (en) | 2019-11-12 |
CA2837217A1 (en) | 2012-12-06 |
US20140371118A1 (en) | 2014-12-18 |
EP2714814A4 (en) | 2015-06-03 |
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